Finding the Fourth Proportional to 763,081.82, 1,053,050.31 and 418,909.18

Step by Step Solution

1. Step 1: Write the proportion equation
   763,081.82 : 1,053,050.31 = 418,909.18 : x
2. Step 2: Convert to fraction form
   763,081.82/1,053,050.31 = 418,909.18/x
3. Step 3: Cross multiply
   763,081.82x = 1,053,050.31 × 418,909.18
4. Step 4: Simplify right side
   763,081.82x = 441,132,436,595.59
5. Step 5: Solve for x
   x = 441,132,436,595.59/763,081.82
6. Step 6: Final answer
   x = 578,093.23